Not a good game. I really like the concept, but this is where you went wrong.
The checkerboard neon colors doesn't cut it for me. It makes the levels look generic and stupid. Think of something original! The enemies were kind of wonk, and you put them close together. Don't make the destroy-able blocks into points. Don't make progression the reward, make the end of the level the reward. So many obstacles slows the game down. The snow background is out of place and seems lazy.
Try and incorporate the Mini Wizard aspect of the game into the game better. I don't mind the mana bar, but you could improve it's usefulness. Increase space between obstacles. Spread things out. Try out a new mechanic or spell. Keep working.

Not sure what spawns the Level 4 or 5 Complete medals. When I played the game, I noticed it gave me the Level 5 Complete medal right away (even before the play game medal) and Level 4 Complete was also awarded before even the Level 1 Complete medal.

That left only needing to clear the first three stages to get full medals.

I'm not sure if this has been fixed or people just get free medals. Either way, it's better to incorrectly award medals rather than to cheat medals from the players once they'd completed the accomplishments, so if it's gonna be broken one way or the other, better this way I guess.